211112010112 has 128 divisors (see below), whose sum is σ = 461035463040. Its totient is φ = 95897714688.

The previous prime is 211112010023. The next prime is 211112010143. The reversal of 211112010112 is 211010211112.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 211112010092 and 211112010101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7451718 + ... + 7479994.

It is an arithmetic number, because the mean of its divisors is an integer number (3601839555).

Almost surely, 2^211112010112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211112010112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230517731520).

211112010112 is an abundant number, since it is smaller than the sum of its proper divisors (249923452928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211112010112 is a wasteful number, since it uses less digits than its factorization.

211112010112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28428 (or 28416 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 211112010112 its reverse (211010211112), we get a palindrome (422122221224).

The spelling of 211112010112 in words is "two hundred eleven billion, one hundred twelve million, ten thousand, one hundred twelve".